11
开关中除了接点之外,也会有可动件使接点导通或不导通,开关可依可动件的不同为分为杠杆开关(Toggle switch)、按键开关、船型开关(Rocker switch)等,而可动件也可以是其他型式的机械连杆。
看标识:市场上常用的家庭一般开关的额定电流为10A,插座电流为10A或16A以上,
认品牌:**产品经时间、市场的严格考验,是消费者心目中公认的安全产品,无论是材质、品质均严格把关,包装、运输、展示、形象设计各方面均有优质的流程,**电工产品不仅是一种安全电工功能用品,更是一件件精致、优雅,折射出高雅文化品味的艺术品。
如今是一个追时尚的时代,电工用品虽然不是一种大众日用消费品,但和手机一样,精美绝伦的款式、风格各异的设计,*具匠心的创意均是为了生活更安全、更舒适。
其实,无论从哪个方面来说,家庭选购应选用一些名优品牌产品,这些产品不仅品质优良,款式新颖,规格多样,更重要的是安全可靠。
GSM-1316C-3
Product Name: Cascadable Satellite multiswitch of 13 in 16
Model: GSM-1316C-3
Product features:
Excellent quality tinplate housing and exquisite plastic case shell attached, making installation convenient
Excellent quality component, professional amplification design and low loss
External 20V 2000mA DC power offering more stable operation
13/18V 0/22KHz DiSEqC 1.0/2.0 supplied by satellite receiver through coaxial cable to switch corresponding port
Capable of connecting twelve SATV **s, one ANT ** or FM broadcast simultaneously
Twelve SATV **s switched through 13/18V 0/22KHz DiSEqC 1.0/2.0 from satellite receiver
Thirteen input **s cascadable and distributed into sixteen subscribers to use simultaneously and no mutual interference
Red LED for power, Yellow LED for power link
Supports multi-satellite multi-receiver and cascadable usage
企业介绍首页 > 企业介绍
中山市伟讯电子科技有限公司属中山(珠海)市科学技术**认定的**产业。公司以客户满意为目标,以“高起点、高品质、高效率”为经营理念,致力于推动我国卫星及其有线电视产业的发展。
中山市伟讯电子科技有限公司是一家专业卫星电视及有线电视*材开发、生产、销售为一体的高新企业,公司产品均采用国内外先进技术、设备和仪器生产,产品种类丰富多样,卫星设备主要产品:DiSEqC切换开关、0/22K切换开关、多路切换开关、功分器、卫星线放、混频器、2.4G/5.8G音/视频无线传送器;有线电视设备主要产品:室内用户放大器、干线放大器、用户盒、室内分支分配器、野外分支分配器、集中型和阶梯型分支分配器等等。
中山市伟讯电子科技有线公司以“严谨创新、诚信务实、持续改进、客户满意”为目标构建公司文化,团结员工树立“以人为本”的核心价值观念,不断提升产品品质,改善生产工艺,以增强自己的行业竞争力。
中山市伟讯电子科技有限公司以技术创新为发展理念,不仅拥有自己的研发团队,也同国内多家业内企业保持稳固的合作关系,这使得我们得以敏锐的洞悉卫星及有线电视设备的发展方向,进而推出适应市场用户需求变化的新型产品,满足国内外更广泛的需求。我们坚信我们能够在合作中不断进步、共同发展。
主要参数
额定电压:是指开关在正常工作时所允许的安全电压. 加在开关两端的电压大于此值,会造成两个触点之间打火击穿。
额定电流:指开关接通时所允许通过的较大安全电流,当**过此值时,开关的触点会因电流过大而烧毁。
绝缘电阻:指开关的导体部分与绝缘部分的电阻值,绝缘电阻值应在100MΩ以上。
接触电阻:是指开关在开通状态下,每对触点之间的电阻值.一般要求在0.1-0.5Ω以下,此值越小越好。
耐压:指开关对导体及地之间所能承受的较高电压。
寿命:是指开关在正常工作条件下,能操作的次数.一般要求在5000-35000次左右。
眼观:一般好的产品外观平整、无毛刺,色泽亮丽和其材料采用优质abs+PC料,阻燃性能良好,不易碎。有的产品表面虽光洁,似乎涂了一层油,但色泽苍白、质地粗大,此类材料阻燃性不好,可以用火点燃试试它的阻燃性怎么样。要是点着很快熄灭,则为好的塑料,否则就是很差的塑料。
手按:好的产品面板用手不会直接取下,必须借助一定的**工具,而一般的非主流中低档产品则很容易用手取下面盖,造成家居和公共场所的不雅。选择时用食指、拇指分按面盖对角成端点,一端按住不动,另一端用力按压,面盖松动、下陷的产品质量较差,反之则质量可信。
耳听:轻按开关功能件,滑板式声音越轻微、手感越顺畅,节奏感强则质量较优;反之,启闭时声音不纯、动感涩滞,有中途间歇状态的声音则质量较差。
GSM-5801
Product Name : 5 in 8 Multiswitch
Model : GSM-5801
Switching Voltage/Signal :
13/18V、0/22KHz
Connectors:“F” type female
Product features:
Excellent quality tinplate housing and exquisite plastic case shell attached, making installation convenient
Excellent quality component, professional amplification design and low loss
An external 20V、700mA DC power offering more stable operation
13/18V、0/22KHz supplied by satellite receiver through coaxial cable to switch corresponding port
Capable of connecting four SATV **s, one ANT ** or FM broadcast simultaneously
Four SATV **s switched through 13/18V、0/22KHz
Distributed into eight subscribers to use simultaneously and no mutual interference
Applicable to multi-satellite and multi-receiver usage
Parameter description:
Item
Specification
Item Specification
Frequency Range ANT 5-860(MHz) Return Loss ANT Input 12(dB)
Frequency Range SAT 950-2150 (MHz) Return Loss Outputs 8(dB)
Insertion Loss ANT 5(dB) Output Level ANT 85(dBuV)
Insertion Loss SAT 3(dB) Output Level SAT 100(dBuV)
Isolation In-In SAT 25(dB) Normal Working Voltage 12-20 (V)
Isolation In-In SAT/ANT 25(dB) DC Power Consumption 45(mA)
Isolation Between Outputs 25(dB) Supply Voltage 20V(±1)700mA
Switching Isolation SAT Inputs 28(dB) Temperature Range -20℃-60℃
Return Loss SAT Inputs 10(dB) Impedance(all ports) 75(Ω)
Company profileHome > Company profile
Zhongshan Visat Electronics Co., Ltd.
Zhongshan Visat Electronics Co., Ltd. is founded in Zhongshan (Zhuhai) and approbated as high-tech industries by Committee of Science and Technology. Visat takes “Customer Satisfaction” as our goal. Visat strive for "Higher starting point, Higher quality, and Higher efficiency", and dedicate to promoting China's satellite and cable television industries.
Zhongshan Visat Electronics Co., Ltd. is one of the most professional high-tech enterprises, which specializes in developing, manufacturing and marketing SATV and CATV equipments. Visat adopts advanced technology, equipments and instruments in order to offer high quality products in varied forms. Our main products includes DiSEqC switch, MultiSwitch, 0/22KHz controlled switch, Satellite Splitter, In-Line Amplifier, Satellite Finder, A/V Sender , IR Remote Extender, Indoor Splitter, Indoor Tap, Outdoor Splitter, Outdoor Tap, CATV Amplifier, Modulator, Wall Sockets, Isolator, Attenuator, Filter, Lightning protector, SAT/ANT Diplexer,etc.
Zhongshan Visat Electronics Co., Ltd takes “Technical Innovation” as developing concept. Because of Advanced R & D team and good relationship between Visat and Clients all over the world, Visat finds its development direction, and never stops our step to innovate. We continuously promote new model products to fit for the trend of SATV and CATV development, so that we can meet the needs of our customers to support their businesses. We believe that we can make more progress through cooperation and common development.